Added res.signedCookie() and tests. Closes #880

lib/response.js

@@ -346,6 +346,24 @@ res.clearCookie = function(name, options){
     : opts);
 };
 
+/**
+ * Set a signed cookie with the given `name` and `val`.
+ * See `res.cookie()` for details.
+ *
+ * @param {String} name
+ * @param {String|Object} val
+ * @param {Object} options
+ * @api public
+ */
+
+res.signedCookie = function(name, val, options){
+  var secret = this.req.secret;
+  if (!secret) throw new Error('connect.cookieParser("secret") required for signed cookies');
+  if ('object' == typeof val) val = 'j:' + JSON.stringify(val);
+  val = utils.sign(val, secret);
+  return this.cookie(name, val, options);
+};
+
 /**
  * Set cookie `name` to `val`, with the given `options`.
  *
@@ -363,7 +381,7 @@ res.clearCookie = function(name, options){
  *    res.cookie('rememberme', '1', { maxAge: 900000, httpOnly: true })
  *
  * @param {String} name
- * @param {String} val
+ * @param {String|Object} val
  * @param {Options} options
  * @api public
  */

test/res.signedCookie.js

@@ -0,0 +1,45 @@
+
+var express = require('../')
+  , request = require('./support/http');
+
+describe('res', function(){
+  describe('.signedCook(name, object)', function(){
+    it('should generate a signed JSON cookie', function(done){
+      var app = express();
+
+      app.use(express.cookieParser('foo bar baz'));
+
+      app.use(function(req, res){
+        res.signedCookie('user', { name: 'tobi' }).end();
+      });
+  
+      request(app)
+      .get('/')
+      .end(function(res){
+        var val = ['user=j%3A%7B%22name%22%3A%22tobi%22%7D.aEbp4PGZo63zMX%2FcIMSn2M9pvms; path=/'];
+        res.headers['set-cookie'].should.eql(val);
+        done();
+      })
+    })
+  })
+  
+  describe('.signedCookie(name, string)', function(){
+    it('should set a signed cookie', function(done){
+      var app = express();
+
+      app.use(express.cookieParser('foo bar baz'));
+
+      app.use(function(req, res){
+        res.signedCookie('name', 'tobi').end();
+      });
+  
+      request(app)
+      .get('/')
+      .end(function(res){
+        var val = ['name=tobi.2HDdGQqJ6jQU1S9dagggYDPaxGE; path=/'];
+        res.headers['set-cookie'].should.eql(val);
+        done();
+      })
+    })
+  })
+})